while driving after 55 if i hold the gas steady it makes a noise in the rear of the car if i give it more it stops or if i let off it stops it kind of sounds like the rear end but that dont make sence plz help ite really getting on my nerves and it also sounds like a tire rubbing but not sure it does come from the back

 

Think about rear axle wear or bearing wear. I had a noise from the back, sounded like a bad bearing. It turned out to be a worn axle where the bearing rides on the axle, Kind of a grinding sound.

 

it just hums really not grindding it only happens when i hold it steady i was kinda thinking low rearend oil

 

I had a similar thing happen in a truck I had a couple years ago. Wound up replacing the diff. Would definitely check the fluid in the rear but meh. I have pics somewhere it was actually pretty nasty lookin.

 

i work at a bodyshope/garge but never had this happen im going to put it on lift tommorrow and check it out thnks for the info ill let you guys no what it is or if i even found out what it was

 

I had something similar and it was the U-Joints (also bad trans mount). If you have a whirring sound in the rear that's changes with speed, that's likely your bearings in the diff.

If gear oil is low, just open up the screw plug and filler-up, but if you were pretty low, you may have other issues still... Are you leaking back there -- looks wet anywhere? Check the axle joints too.

 

it doesnt leak anywhere it just makes a humming noise if you hold the gas pedal steady and if you speed up or slow down it stops doing it but now when i tap the breaks it grinnds a little so i think it needs pads but that wouldnt cause it to humm would it my girl friend drove it to work today and said it would stop making thr noise but start again then would jerk a little some one plz help

 

and i mean as soon as you let off the pedal it stops or give it a little gas i wouldn think it would be bearings it dont grind just humms and the gears are brand new

 

I've had something similar steady at 40 and 50, and my diff fluid is fine. I was thinking u-joints or just wear on the diff.

 

didnt get to it today but hoping its something small.